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A plane electromagnetic wave of intensit...

A plane electromagnetic wave of intensity of `10 W//m^(2)` strikes a small mmirror of area `20 cm^(2)`, held perpendicular to the approcaching wave. The radiation froce on the mirror will be:

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Radiation force = momentum tranfered per second by electromagnetic wave to the mirror
`=(2//A)/(c)=(2xx(10)xx20xx10^(-4))/(3xx10^(8))1`
`=1.33x10^(-10)N`
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